PHP atanh

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PHP : atanh() function

Description

The atanh() function returns the inverse hyperbolic tangent of an angle. 

Note : This function was not compatible on windows platform before 5.3.0 version.

Version

(PHP 4 and above)

Syntax

atanh(number)

Parameter

Name

Description

Required /
Optional

Type

number

Numeric value.

Required

Float

 

Return value

The inverse hyperbolic tangent of the number.

Value Type : Float.